Tricky Door Coffin: the Immortal Sect Is Slaughtered but I Am Stained with Blood and Live Forever

[Fantasy, Jianghu, Dark Literature] The Holy Coffin sacrifices lifespan in exchange for strength. The so-called noble family sacrifices the ordinary, causing the lives of all the people in Tianguan world to be devastated. Xia Jiuyou was originally a commoner. It was not until the age of 18 that his childhood sweetheart's accident completely set him on the path of blood cultivation. He attained enlightenment on his own and practiced the treacherous coffin.